Production line for the manufacture of sausage-shaped products

ABSTRACT

A method for controlling a production line for manufacturing sausage-shaped products, a production line provided for this as well as a clip machine and a feeding machine for the manufacture of sausage-shaped products, with a flowable filling material such as sausage meat, a sealing material, granulate and the like being received in a tubular wrapper material and with the production line having at least: a clip machine, in which the wrapper material filled with filling material is divided into portions into individual sausage-shaped products by placing closing clips and is separated from the supply of the remaining wrapper material; with at least one flexible suspension element being applied to the sausage-shaped product during the placing of the closing clips, which is fed in a timed manner into the clip machine; and a feeding machine, which supplies the storage rods individually for further processing of the sausage-shaped products and which has conveyor elements, circulating continuously along a transport path, which is used to supply the storage rods with sausage-shaped products and which takes the sausage-shaped products proceeding out of the clip machine into a takeover area provided between the clip machine, and the feeding machine. In addition, at least the circulation rate of the conveyor elements of the feeding machine.

BACKGROUND AND SUMMARY OF THE INVENTION

The invention relates to a method for controlling a production line forthe manufacture of sausage-shaped products, a production line for theaforementioned purpose as well as a clip machine and a feeding machinefor a production line for manufacturing sausage-shaped products.

It is known from experience, for example, that during the manufacture ofsausages the sausage meat is fed from a filling machine via a fillingpipe to a clip machine. In the clip machine the filling material filledinto enclosed, tubular packaging material, is closed on one side with afirst clip, and then closed by placing a second clip. If thesausage-shaped product or the sausage product is to be suspended forfurther processing, a suspension element is normally inserted into thesecond clip, usually a thread loop, and fastened with this second clipto the sausage product. Then the sausage products are aligned on thestorage rods in order to be processed further, for example, to besmoked.

From DE 39 35 746 A1 (U.S. Pat. No. 5,100,364) a method and a device forthe mechanized suspension of sausage products is known. In the process atransfer device, consisting of two initially congruent, adjacent,pivotable, partial hooks, engages the suspension element formed by athread loop and removes the sausage product from the clip machine. Thenthe two hooks of the transfer device are pivoted from the removalposition, in which the sausage product was removed from the clipmachine, into a transfer position. The two hooks are then separated atthe same time.

In the transfer position the sausage product is transferred to aconveyor element of an endless conveyor. The conveyor elements have twospaced hooks for this at their lower end, with the distance between thembeing less than the distance of the spread hooks of the transfer device.The hooks of the conveyor element engage the spread loop of the sausageproducts and then remove it from the transfer device. The transferdevice can then be rotated further until it reaches its initial positionin which the partial hooks lie next to one another.

By means of the conveyor element the sausage product suspended from itis placed on a storage rod fixed on one side. For that the conveyorelement is conducted parallel past the storage rod so that the loop isthreaded onto the rod. Once a specific position is attained, a pressbeam presses the hooks of the conveyor elements down so far that theloop of the sausage products is placed on the rod. Then the conveyorelement is moved along further so that the hooks disengage from the loopso that the sausage product remains in the appropriate position on therod. Then the hooks are unloaded by lifting the press beam.

A disadvantage of this known method or this known device is that thealignment of the transfer device to the removal position on the clipmachine and to the conveyor element located in the transfer positionmust be extremely precise. Even the slightest deviations can lead to theloops of the transfer device either not being picked up in the removalposition on the clip machine and/or not being transferred in thetransfer position to the conveyor elements. Even discontinuousconveyance by halting the conveyor elements for the takeover of thesausage products from the transfer device proves to be detrimental,since swinging movements of the sausages suspended from other conveyorelements can be triggered by the stopping and restarting of the endlessconveyor, which leads to additional stresses on the transport unit.Furthermore, the press beam, which causes the lowering of the hooks ofthe conveyor elements, must extend the entire length of a storage rod,since it can only distribute the sausage products along the entirestorage rod by lowering the hooks of a conveyor element. Finally, exacthalting of the conveyor elements is required to assure even spacing ofthe sausage products on the storage rod.

Disclosed is a method for controlling a production line for themanufacturing of sausage-shaped products and to supply a productionline, a clip machine and a feeding machine of the type mentioned at thebeginning, which will overcome the disadvantages mentioned and enable acontinuous loading of storage rods, reliable in terms of the process,with suspended sausage-shaped products hanging from suspension elements.

In particular, a method is proposed for controlling a production linefor manufacturing sausage-shaped products, with the sausage-shapedproducts in a tubular wrapper material receiving a filling material,such as sausage meat, a sealing material, a granulate and the like. Theproduction line contains at least one clip machine, in which the wrappermaterial filled with filling material is divided into portions intoindividual sausage-shaped products by the closing clips and is separatedfrom the supply of the remaining wrapper material, at least one flexiblesuspension element is attached to the sausage-shaped product during theplacement of the closing clips, which are fed in a timed manner into theclip machine, and a feeding machine which supplies or loads the storagerods individually for further processing of the sausage-shaped products.In the process, circulating conveyor elements, running continuouslyalong a transport path, are used to supply the storage rods withsausage-shaped products, which take the sausage-shaped productsproceeding out of the clip machine into a takeover area provided betweenthe clip machine and the feeding machine. Furthermore, at least therevolving rate of the transport elements of the feeding machine arecontrolled on the basis of a control variable derived from the clipmachine.

As a result of controlling at least the revolving rate of the conveyorelements of the feeding machine on the basis of a control variablederived from the clip machine, an initial coordination of the feedingmachine with the clip machine is attained and thus with the productionrate in the clip machine. A simple interlocking conveyance between clipmachine and feeding machine is provided. Furthermore, the option of acontinuous operation of the endless conveyor is available. In otherwords, in contrast to the state of technology, where a start/stopoperation of the endless conveyor occurs, the conveyor elements of theendless conveyor may circulate continuously.

If the circulation rate of the conveyor elements is halted at intervalsat a setpoint approaching a constant determined by the control variablederived from the clip machine, the swinging movements of thesausage-shaped products can be minimized, which stabilizes the movementof the endless conveyor and lessens the mechanical wear and tear on theendless conveyor among other things.

A wide variety of values of the clip machine can be used for the controlvariable derived from the clip machine. Of particular advantage is whenthe control variable derived from the clip machine for the circulationrate of the conveyor elements is the feed rate of the suspensionelements in the clip machine. The feed rate of the suspension elementsprovides the actual production timing for the manufacture of thesausage-shaped products in the clip machine, since a suspension elementis fastened to each of the products. Even if a suspension element isattached to each second, third, etc. sausage-shaped product, which isbasically possible when forming sausage pairs or sausage chains asdisclosed herein, the feed rate for the suspension elements representsone of those variables that can be derived from the clip machine, whichgives a good description of the actual production rate in the clipmachine.

However, since the circulation rate of the conveyor elements is exposedto additional disturbances, such as disturbances that are the result ofwear and tear occurring or of the swinging movements of thesausage-shaped products, which lead to fluctuations in the circulationrate of the conveyor elements, it is useful to superimpose someregulation on the control of the circulation rate.

The regulation can occur on the basis of various regulating andreference input variables. For example, it can be designed that, giventhe regulation superimposed on the control of the circulation rate, thetime for reaching a takeover position in the feeding machine isregulated by the conveyor elements for the continuous takeover ofsausage-shaped products. Thus it can be assured that a product is in thetakeover or transfer position at the takeover time.

The actual regulation itself again can occur in different ways. Thusregulation of the circulation rate of the conveyor elements based on thedeviation tendency of the interval of the conveyor elements from thepredetermined position on the transport path of the conveyor elementscan be carried out. For, by determining the deviation tendency, theinfluence of almost all disturbances on the circulation rate of theconveyor elements can be measured and corrected. With an increase in thedeviation tendency the circulation rate of the conveyor elements isincreased, and the circulation rate is reduced with a decrease in thedeviation tendency.

Every suitable position along the transport path of the conveyorelements can be selected, even for the predetermined position. Since thetakeover position of the conveyor elements, in which they take over asausage-shaped product from the clip machine, is a clearly definedposition, it may be useful, in addition, to select the takeover positionof the conveyor elements in the feeding machine as the predeterminedposition for the takeover of sausage-shaped products flowing out of theclip machine. As a result, it can be assured that a conveyor element isin the takeover position at the takeover time.

The determination of the deviation tendency can occur again in the mostvaried ways. Thus, to determine the deviation tendency, the distance ofa specific conveyor element from the predetermined position in acirculation along the transport paths can be compared with the distanceof the specific conveyor elements from the predetermined position in asubsequent circulation. Alternatively, the distance of a specificconveyor element from the predetermined position in a circulation alongthe transport paths can be compared with the distance of the followingconveyor element from the predetermined position in the same circulationto determine the deviation tendency. In both cases the development ofthe circulation rate of the conveyor elements can be measured veryprecisely, and, with the regulation, one can respond very quickly tochanges accordingly.

Besides the machines already mentioned, more machines can be added tothe disclosed production line. Thus, for example, a filling machine,preferably operated on a timed basis, can be arranged in the productionline, upstream from the clip machine in the production line or arrangedbefore the clip machine against the direction of production flow andpreferably feeding the filling material to the wrapper material in theclip machine. This way it is possible to integrate it into the controlof the entire production line, allowing a further improvement in processcontrol to be achieved. In the process the filling machine can beoperated continuously or discontinuously.

If the operation of the filling machine is halted for a disturbance inthe operation of the feeding machine, an additional feed of fillingmaterial to the clip machine, arranged downstream, can be avoided, and apossible clogging of the clip machine can be prevented.

If a release signal applied to the filling machine is removed by thefeeding machine to halt the filling machine, this can be switched off atthe same time upon detecting a disturbance in the feeding machine.

It is useful, if, during a disturbance in the operation of the feedingmachine, the operation of the clip machine is continued until thecompletion at least of the sausage-shaped products about to be clippedand the operation of the clip machine is halted upon completion. Then itis assured that no semi-finished product will be found in the clipmachine when it is switched on again, which could trigger repeatdisturbances immediately.

Furthermore, it is useful, if, during a disturbance in the operation ofthe feeding machine, the conveyor element, which is right in thetakeover position of the feeding machine and taking over asausage-shaped product from the clip machine, is removed from thetakeover position before the operation of the continuously circulatingconveyor elements is halted. During the next startup of the productionline the takeover position of the feeding machine and the transferposition of the clip machine are vacant so that a product that is stillin the delivery path of the clip machine can be conveyed into thetransfer position.

Furthermore, it is advantageous, if the halting of the continuouslycirculating conveyor elements occurs before the conveyor element, which,in the takeover position, has just taken over a sausage-shaped productfrom the clip machine, has reached a storage rod being supplied. As aresult, the storage rod is not blocked by the conveyor element and canbe removed, if necessary.

Furthermore, a control device can be provided for the embodiment of thecontrol or regulation that is in the position to control at least thecirculation rate of the conveyor elements of the feeding machine, basedon the control variables derived from the clip machine. In the process,the control device can also be used to control the operation of thefeeding machine and the clip machine, which are coordinated with oneanother.

In particular, a production line for the manufacturing of sausage-shapedproducts is proposed, which receives a flowable filling material such assausage meat, sealing material, granulate and the like in a tubularwrapper material, with the production line displaying at least: one clipmachine, in which the wrapper material filled with filling material isdivided into portions into individual sausage-shaped products by placingclosing clips and separated from the supply to the remaining wrappermaterial, at least one flexible suspension element is applied to thesausage-shaped product during the placing of the closing clips, fed in atimed manner into the clip machine; and a feeding machine, whichsupplies or loads the storage rods individually for further processingof the sausage-shaped products and which has conveyor elements,circulating continuously along a transport path, which is used to supplythe storage rods with sausage-shaped products and which takes thesausage-shaped products proceeding out of the clip machine into atakeover area provided between the clip machine and the feeding machine,where a control device is provided, which is in the position to controlat least the circulation rate of the conveyor elements of the feedingmachine, based on the control variables derived from the clip machine.

At the same time, it is useful if the control device is in the positionto superimpose a regulation on the control of the circulation rate.Furthermore, it is useful if the control device is in the position tocontrol the coordinated operation of the feeding machine and the clipmachine.

In a preferred embodiment of the production line, the transport pathbetween the clip machine and the feeding machine is interrupted, withthe interruption of the transport path between clip machine and feedingmachine being formed preferably by a takeover area, in which thetransport path of the clip machine ends in a transfer position where theconveyor elements of the feeding machine, in a takeover position on thefeeding machine side, take over the sausage-shaped products individuallyfrom the transfer position on the clip machine side.

Due to such an arrangement, the physical contact between the componentsof the production line is interrupted, preventing mechanical wear andtear. Moreover, no precise positioning of the clip machine is requiredas regards the feeding machine. For maintenance work to be done on oneof the two machines, each of the machines can be taken out of theproduction line system then without the other machine having to bemoved. The clip machine can pivot away, for example, to put on a newcasing without the feeding machine having to be moved.

As already mentioned above, additional machines can be provided in theproduction line besides a clip machine and a feeding machine, forexample, a filling machine for feeding filling material to the wrappermaterial in the clip machine, arranged upstream to the clip machine inthe production line.

In particular, a clip machine is provided for a production line for themanufacture of sausage-shaped products, with the sausage-shaped productsreceiving a flowable filling material such as sausage meat, sealingmaterial, granulate and the like in a tubular wrapper material. The clipmachine itself contains at least two sealing tools for placing andclosing clips on the sausage-shaped product, movable relative to oneanother between an opening and a closing position; at least one clipstorage device from which clips can be fed to a sealing tool; a storagedevice for storing a supply of wrapper material; a separation device forseparating an individual sausage product from the supply of wrappermaterial; a filling pipe for the feeding of filling material; a deliverydevice for delivering sausage-shaped products from the clip machinealong a transport path for the sausage-shaped products; and a feedingdevice for flexible suspension during the placement of clips, with thetransport path providing an initial transport path for thesausage-shaped products. Parallel to the transport path for thesausage-shaped products, a separate transport path is provided for thesuspension elements connected to a sausage-shaped product.

As a result, the sausage-shaped products are conducted safely out of theclip machine and, the suspension elements can be optimally prepared forthe transfer.

If the transport path for the sausage-shaped products and the transportpath for the suspension elements connected to a sausage-shaped productend in a transfer position, where a sausage-shaped product can be keptready in a defined manner for the transfer for further processing, thenit is assured that, directly upon completion, the sausage-shapedproducts will arrive for transfer for further processing.

It is advisable to provide at least one transfer device at the transferposition for the transfer of the sausage-shaped products, which isshaped like a fork on its end facing away from the clip machine. As aresult, an appropriately designed conveyor element can remove thesausage-shaped product from the transfer position without makingcontact, thus eliminating additional sources of disturbance.

If at least one sensor is provided at the transfer position that candetect the presence of a sausage-shaped product, continuous anddisturbance-free operation can continue to be ensured.

In order to avoid damage to the suspension elements, the transport pathfor the suspension elements can be designed with a guide track having asuitable cross-section. In a preferred embodiment example, the guidetrack has a circular cross-section. Thus the suspension elements caneasily slide along it without being damaged.

The guide track has preferably at least two bearing devices, each ofwhich can be formed specifically by three support rollers preferablyarranged evenly divided in the circumferential direction of the guidetrack, with the guide track being sufficiently and securely supported.

If the guide track is angled between the bearing devices, asausage-shaped product can slide along on the angled portion of theguide track under its own weight. It is useful then if the angledsection is in the vicinity of the bearing device near the feedingmachine and if the track is sloped downwards. Moreover, this arrangementcan prevent any occurrence of the guide track being rotated, if need be.

In order to facilitate the threading of the suspension element with thebearing devices, the guide track can be provided with a drivable hollowshaft in the area of the bearing device that is arranged coaxially tothe guide track.

In an advantageous embodiment, the guide track is provided with athread-shaped circumferential groove in the area of the bearing devicesin order to make the passage of the suspension elements through thebearing devices possible. The thread-shaped circumferential groove canpreferably be provided on the hollow shaft.

In a further preferred embodiment, the guide track has a correspondingconvex surface in the area of the support rollers. As a result, inaddition to the supporting of the guide track, an axial securing elementis achieved.

It is useful, if at least one of the support rollers of each bearingdevice can be driven, since then the hollow shaft can be driven, andthus a forced guidance of the suspension elements by the bearing deviceis achieved.

If a threading cone is provided on the clip machine side end of theguide track, then the suspension elements of the sausage-shaped productscan be guided safely with its assistance onto the guide track.

A catch device for the suspension elements, connecting to the clipmachine side end of the guide track, which extends from the guide trackinto the closure area of the sealing tools, ensures that all caughtsuspension elements are guided securely to the guide track. In apreferred execution, the catch device is angled and possesses acone-shaped catch point.

Furthermore, it is advantageous, if the suspension elements are formedby thread loops, since these are flexible and easy to handle.

In particular, a feeding machine for a production line is proposed forthe manufacturing of sausage-shaped products, with the sausage-shapedproducts in a tubular wrapper material receiving a flowable fillingmaterial such as sausage meat, a sealing material, granulate and thelike, with storage rods provided for suspending the sausage-shapedproducts, which have a flexible suspension element on one end, which canbe guided over the storage rods and which can assume a closed or an openembodiment. Furthermore, the feeding machine contains a device formounting an empty storage rod at the other end and a device for feedingthe sausage-shaped products, suspended from their suspension elements,one after another, guiding the suspension elements over the free end ofthe storage rod and depositing the suspension elements at positionsspaced from one another along the storage rod. The device for feedingone after the other can have an endless conveyor at the same time, witha strand running parallel to the storage rod. The endless conveyor hasspaced conveyor elements to receive the suspension elements of thesausage-shaped products following one after the other. The conveyorelements are movable from a position holding the sausage-shaped productsby their suspension elements to a position releasing and depositing thesuspension elements on the storage rod. At least one control element atspaced intervals along the storage rod causes the movement of theconveyor elements into their depositing position. Furthermore, theconveyor elements have hooks that are pivotable around horizontal axesfrom their position holding the suspension elements. The control elementis a trigger element moved along the strand of the endless conveyoragainst its forward direction, which triggers the swiveling of the hooksfrom their holding into their depositing position.

Such a construction makes it possible, in the presence of asausage-shaped product in the transfer position, for this product to beremoved from the transfer position from only one conveyor element anddeposited in a predetermined position on a storage rod. In other words,from the pick-up by the conveyor element from the transfer positionuntil its final deposit on a storage rod the product does not have to betransferred to any additional transport element. As a result, furthersources of error are excluded, and the automation of this process issimplified.

It is useful if the hooks are comprised of two identical partial hooks,which, before reaching a takeover position from the feeding machine, inwhich the sausage-shaped products can be taken over by their suspensionelements by the conveyor elements, are congruent with one another and,after leaving the takeover position are capable of spreading crosswiseto the extension of the strand against a spring force into a positionkeeping the suspension elements open. Thus the products are removedsafely from the transfer position. Due to the subsequent spreading ofthe hooks, the loop is opened so wide that they can be guided over thestorage rod free from damage and without bumping.

An actuating body, arranged in the direction of the endless conveyorbefore the takeover position for the suspension elements, can move thehooks after the depositing of the sausage-shaped products on the storagerod back into their suspension element holding position. As a result,this ensures that the hooks are always in this position upon reachingthe takeover position, and an undisturbed operation is assured.

In a preferred execution, the endless conveyor is a chain around a drivedisc and a turn-around disc, with both discs rotatable around horizontalaxes. Chains appear to be particularly suited since they run withoutslipping and do not stretch, as for example, belts do, so the distancebetween two conveyor elements always remains the same.

It is useful, if a supporting device is provided that, after the partialfilling of a storage rod, can be pivoted in reverse on this devicebetween its ends from a waiting position into a supporting position. Dueto the filling of the storage rods mounted at one end, the storage rodbends downwards. However, if it is held by a supporting device, which,for example, engages in the center under the storage rod, an unreliablefurther bending is prevented, and the rod can continue to be filledsecurely.

In the process, it is practical if the supporting device can be movedinto the supporting position by means of gravity and into the waitingposition by means of a motor drive, since the addition of another drivecan be spared as a result.

The assistance from the movement of the supporting device into thesupporting position through an elastic pre-tensioning force, which isreproducible with the motor drive, increases the aforementioned effect.

If the motor drive of the supporting device can be driven by a drive ofthe feeding machine, then it is possible to adjust its movement to therate of the filling machine, that is, moving it, for example, into thewaiting position during the exchange of a filled storage rod.

In an advantageous execution, the movement of the supporting device fromthe waiting position into the supporting position can be triggered by atrigger element. As a result, it is possible to move the supportingdevice into the supporting position with an exactly pre-determinedfilling level.

Furthermore, it is useful if the supporting device has a locking device,which locks the supporting device reversibly in the waiting position,keeping it securely in the waiting position.

The movement of the supporting device can be guided along a continuouscurved track, with the curved track demonstrating at least twodiscontinuities that define the waiting position and the supportingposition.

A great variety of solutions can again be provided for mounting thestorage rods. A device for fixing a storage rod at one end should bedesigned with preferably four fixation points or clamping units as partof a turret device. As disclosed herein, this turret device is rotatableat least into one mounting position, into a feeding position and into adelivery position. It can be useful if a testing position is providedbetween the mounting position and the feeding position, in which thepresence of a storage rod is checked in a mounting unit and/or thestraight direction of the storage rod. The latter is necessary sincestorage rods can be bent or incorrectly mounted, for example, whichmakes the threading of the sausage-shaped products on the storage rodsdifficult or impossible.

If the turret device has a motor drive, from which the movement of thesupporting device from the supporting position into the waiting positioncan be driven, the movement of the supporting device can be controlledin an advantageous manner as a result.

In a preferred embodiment, a testing device is provided on the side ofthe feeding machine opposite the turret device, which measures at leastthe presence of a storage rod. In the process, it is useful if thetesting device is in the position to detect the alignment of the storagerod in order to establish its correct axial alignment.

Furthermore, it is useful, if the testing device is in the position toremove an incorrectly positioned storage rod and/or a storage rodshowing an incorrect alignment from the turret device, since analignment of an incorrectly inserted rod would be too costly. In theprocess, the testing device can do this itself or have another device doit as well, for example, the mounting device.

The testing device can have quite a varied construction. A simple andreliable design is attained by having the storage rod in the mountingposition be capable of moving its free end axially into a testing cup ofthe testing device in the testing position and being capable of beingdiscarded if there is an impediment in the movement.

In a preferred embodiment, the conveyor elements can be guided past,parallel to the storage rods, to transfer the sausage-shaped products tothe storage rods, with each depositing position on the storage rod beingachievable for the sausage-shaped products.

If the partial hooks of a conveyor element are capable of being spreaddirectly before reaching the storage rod, and preferably a particular,trapeze-shaped spreading bar is provided for spreading the partialhooks, then it is ensured that the loops will be opened far enough onreaching the storage rod that they can be guided over the storage rod.

Upon completion of a circulation of the conveyor elements, in order forsausage-shaped products to be picked up once again, it is useful if thespread partial hooks of the conveyor elements can be compressed togetheragain upon reaching the end of the storage rod, and preferably thespread partial hooks of the conveyor elements can be compressed togetheragain, for example, by means of a pre-tensioned spring.

If a release screw is provided as the release element that preferablycan be guided on a spindle, upon reaching it, a conveyor elementreleases the sausage-shaped product for deposition onto the storage rodby folding the hooks together. Then the distance of two adjacentproducts can be set precisely. In the process the release screw can beguided against the movement direction of the conveyor elements so thatuniform filling of the storage rod occurs. At the same time, the releasescrew is in the position to actuate a mechanism that causes the foldingtogether of the hooks of the conveyor elements.

If the conveyor element right before reaching the takeover positionpasses a hook straightening element that straightens the folded hooks torelease the sausage-shaped product, then it is ensured that a product inthe transfer position can be taken over without a problem.

Furthermore, it is useful if the conveyor element has a catch devicethat secures the hooks of the conveyor elements in the folded positionas well as a catch device that secures the hooks of the conveyorelements in the straightened position as needed. As a result, the securepickup and deposition of the sausage-shaped products are ensured anddisturbances avoided.

A feeding device for the storage rods can be provided that feeds thestorage rods in coordination with the work cycle of the feeding machineso that they can be fed accordingly as needed.

A complicated pivoting of the rods is avoided, if the feeding device isin the position to feed the storage rods axis-parallel to the clampingdevice of the turret device and the storage rods are placed in thefeeding machine coaxially to the clamping device.

In an advantageous execution, the feeding device has at least two rigidsupport elements, provided with even divisions, on which a supply ofstorage rods is deposited axis-parallel to the filling direction, whichstorage rods can be transported into the feeding machine preferably byat least two discharging rods, provided with even divisions, through anintermittent movement.

If the intermittent movement can be generated by an eccentric, thetransport rate can be regulated via the rotational speed of theeccentric. At the same time, it is useful that at least one eccentriccan be driven by a belt drive, which can be derived from the drive ofthe turret device, since the transport rate of the rods can then beadapted to the production rate of the sausage-shaped products.

Furthermore, it is useful for the weight and quality check, if aweighing device for the sausage-shaped products is provided in the areaof the takeover position, which selectively measures the weight of anindividual sausage-shaped product. At the same time, the weighing devicecan have a weighing lever free to pivot into the movement path of theconveyor element, to which a sausage-shaped product to be weighed can betransferred by the conveyor element.

Additional advantageous embodiments as well as an example of anexecution of the invention will be explained in greater detail in thefollowing, in connection with the description of an embodiment, inassociation with the enclosed figural drawings. The concepts of ‘above’,‘below’, ‘left’ and ‘right’ used during the description of the exampleof an execution refer to the drawings in an orientation with normal,readable reference numbers and figural designations.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic overview representation of a new production line;

FIG. 2 is a side view of a new feeding machine with a delivery path forsausage-shaped products from a new machine;

FIGS. 2 a and 2 b are schematic representations of a transfer positionfrom a clip machine to a feeding machine in the production linereproduced in FIG. 1, in an overhead view and a side view, respectively;

FIG. 3 is a partially sectioned side view of the delivery path for thesausage-shaped products from the clip machine shown in FIG. 2;

FIG. 4 is a schematic representation of a bearing device of a guidetrack in the delivery path of the clip machine shown in FIGS. 2 and 3;

FIG. 5 is a schematic overhead view of the transfer position of the clipmachine to the feeding machine shown in FIGS. 2 a and 2 b;

FIG. 6 is a schematic, perspective view of an endless conveyor and aturret device of an inventive feeding machine in a view from below;

FIG. 6 a is a schematic representation of a transfer position of aconveyor element of the endless conveyor of the feeding machine shown inFIG. 6 to a storage rod in the feeding machine;

FIG. 7 is a schematic view of the turret side end of the endlessconveyor shown in FIG. 6;

FIG. 8 is a schematic, perspective view of the endless conveyor and theturret device of the feeding machine shown in FIG. 2 in a view fromabove;

FIG. 9 is a schematic, perspective view of the turret device of thefeeding machine shown in FIG. 2 in a view from below and in thedirection of the clip machine;

FIGS. 10 a to 10 d are schematic views of a testing device shown invarious positions;

FIG. 11 is a schematic overhead view of a feeding device for storagerods in the feeding machine shown in the FIG. 2;

FIG. 12 is a schematic representation of a measuring principles for thedetermination of a deviation tendency of the conveyor elements of theendless conveyor of the feeding machine shown in the FIG. 2; and

FIG. 13 is a block diagram of a new control system with superimposedregulation.

DETAILED DESCRIPTION

In FIG. 1 a production line FCB represented schematically in its basicconstruction is shown. This construction will be explained in its basicstructures in the following.

The production line FCB as disclosed herein serves the manufacturing ofsausage-shaped products or sausage products W. Of course, the productionline FCB can be used for the manufacture of other sausage-shapedproducts W, for example, sausage-shaped individually sealed intoseparate portions and the like. The production line FCB can process anyflowable filling material, i.e., thus also granulate, fluids, etc. thatcan be filled into a wrapper material and divided into portions as asausage-shaped product.

As can be gathered from FIG. 1, the production line FCB is comprised ofa filling machine F, a clip machine C and a feeding machine B, which,corresponding to the production flow direction PR of the production lineFCB, are arranged one after the other, in keeping with their function inthis particular sequence. Filling material, sausage meat here, is fedfrom the filling machine F to a filling hopper T, discontinuously orcontinuously, by means of suitable conveying device, for example, a feedpump, to the clip machine C. In the clip machine C the sausage meat isfilled into wrapper material, also not represented in greater detail inFIG. 1, and divided into portions into individual sausage products W.Then the sausage product W, manufactured this way, is delivered from theclip machine C via a delivery path AS of the clip machine C to atransfer position ÜC. From the transfer position ÜC a conveyor element,not represented in greater detail in FIG. 1, of an endless conveyor offeeding machine B takes over the sausage product W in a takeoverposition ÜB. In the feeding machine B the individual sausage products Ware threaded onto individual storage rods SP one after the other, butthreaded on at spaced intervals between one another. Then the storagerods SP can be removed from the feeding machine B for further processingof the sausage products W and fed, for example, to a smoking oven andthe like.

The clip machine C has a filling pipe FR for feeding the fillingmaterial from the filling machine F and is linked via this to thefilling machine F. At the same time, the filling pipe FR can also serveas a repository for the supply of wrapper material that is processed inthe clip machine C. In addition, the clip machine C has a feeding deviceZE for flexible suspension elements AE, preferably a conveyor belt. Thesuspension elements AE, formed preferably by thread loops, are on asupport belt, coated on one side with an adhesive, from which they areremoved individually by a die of a clip placing and clip closing tool,not depicted in greater detail, in the clip machine C. As can begathered from FIG. 1, the feeding device ZE for the suspension elementsAE is arranged on the clip machine C in the area of the clip placing andclip closing tools so that their direction of travel runs approximatelyperpendicular to the production flow direction PR in the production lineFCB.

In the clip machine C, the tubular wrapper material is filled with thesausage meat and divided into portions into sausage products by closingclips placed at appropriate positions. In the process, a flexiblesuspension element AE, which was inserted by the feeding device ZE intothe clip placing and clip closing tool of the clip machine C, isfastened at the same time to an end of each sausage-shaped product W.Then the finished sausage product W is carried out onto the deliverypath AS from the clip machine C. The delivery path AS of the clipmachine C ends in the transfer position ÜC, where the sausage products Ware taken over individually by the conveyor elements, not represented ingreater detail in FIG. 1, in a takeover position ÜB from the feedingmachine B and fed to the storage rods SP. The transfer position ÜC atthe end of the delivery path AS of the clip machine C and the takeoverposition ÜB of the feeding machine B together form a takeover area ÜB,ÜC, where the conveyor elements take over a sausage product W that is inthe transfer position ÜC of the clip machine C.

It should be noted that, besides the procedure described above ofapplying a suspension element AE to each sausage product W, the optionexists of applying a suspension element AE to every second, third, etc.sausage product W, with the wrapper material not being separated betweenthe first, second, third, etc. sausage product W. As a result, pairs orchains of sausage products W can be formed.

In the production flow direction PR of the production line FCB, thefeeding machine B connects to the clip machine C. As already mentionedbefore, the storage rods SP may be kept ready in the former in anaxis-parallel alignment to the production flow direction PR of theproduction line FCB, i.e., in a horizontal alignment in FIG. 1 fordepositing the sausage products W. In the process, the storage rods SPare fed or loaded with the sausage products W, with the sausage productsW having an interval between one another that remains approximately thesame, selected preferably so that the exteriors of the sausage productsW do not touch. The attainment of the intervals can be set throughsuitable means, which will be explained in greater detail in thefollowing.

In the following the construction of the clip machine C, in particular,its delivery path AS, will be explained in greater detail with referenceto FIGS. 2 to 4.

In FIG. 2 feeding machine B is represented with the upstream deliverypath AS of the clip machine C. The takeover area ÜC/ÜB, which is formedby the transfer position ÜC of the clip machine C and the takeoverposition ÜB of the feeding machine B, is provided at the interfacebetween the end of the delivery path AS of the clip machine C and thefeeding machine B, as has already been mentioned. To the right of thedelivery path AS is the clip machine C, which is not represented ingreater detail in FIG. 2.

The delivery path AS of the clip machine C has as its integralcomponents a conveyor belt 110, a guide track 130 and two bearingdevices 140 bearing the guide track 130. The conveyor belt 110 servesthe transport of the sausage products W that lie on the conveyor belt110 in a horizontal alignment, with the sausage ends facing the feedingmachine B or the clip machine C. Moreover, the guide track 130 isprovided to guide the suspension elements ΔE of a sausage products Wtransported by the conveyor belt 110.

The conveyor belt 110, which extends from the clip placing and clipclosing tools of the clip machine C into the vicinity of the secondbearing device 140, is driven via a drive motor 112 provided beneath theconveyor belt 110 (cf. FIG. 3). Via a gear, not described in greaterdetail, the drive motor 112 drives a belt pulley 114, over which a belt116 is looped for the direct drive of the conveyor belt 110. The belt116 is also looped around a deflection roller 118 of the conveyor belt110, arranged to the left in FIG. 3, which simultaneously serves as thedrive roller for the conveyor belt 110. The conveyor belt 110 isdeflected, furthermore, via several cylinders not described in greaterdetail, whose axes run, deflected, perpendicularly to the transportdirection of the conveyor belt 110; thus the distance between theconveyor belt and the sealing tools can be changed.

From the drive motor 112, furthermore, a driving force for the guidetrack 130 is derived directly from the motor shaft. Referring to FIG. 3,from an angular gear 120, arranged beneath the conveyor belt 110 and theguide track 130, a drive belt 122, running vertically upwards, extendsin the direction of the guide track 130, serving as the rotary drive forthe guide track 130 in the area of the bearing devices 140 in a mannerto be described in the following.

The guide track 130 is arranged above the conveyor belt 110 andcomprises a guide track section 130 a running horizontally, which, withreference to FIGS. 2 to 4, extends from the clip machine C to the leftas well as a guide track section 130 b, connecting to the left end ofthe horizontally running guide track section 130 a and running from thisguide track section 130 a to the right down an incline or a slope. Dueto the bending of the guide track 130, the sausage product W, afterleaving the conveyor belt 110 moves independently under its own weightinto the transfer position ÜC. In both sections 130 a, 130 b the guidetrack 130 may have a cross-section that is approximately circular.

As can be gathered, in particular from FIGS. 2 and 4, the guide track130 at its clip machine side end is provided with a threading cone 134for threading the suspension elements AE. The threading cone 134 forms apart of a catch device, not described in greater detail, which extendsto the closure area of the clip placing and clip closing tools of clipmachine C, assuring a secure threading of the suspension elements AEformed by the thread loops. The threading cone 134 is aligned coaxiallyto the guide track 130 and points away from it with its tip. Thethreading cone 134 has a sharp cone angle, facilitating the guiding of asuspension element AE. On its end pointing to the guide track 130 thethreading cone 134 is provided with an annular, circumferential recess134 a.

At its feeding machine end of the guide track 130 a fork-shaped transferdevice 136 is attached to the guide track 130, which defines thetransfer position ÜC of the clip machine C. As is apparent from FIGS. 2a and 2 b, the two tines 136 a of the fork-shaped transfer device 136are at least approximately in a horizontal plane. The ends of the tines136 a are bent upwards so that a sausage product W sliding down theguide track 130 remains suspended from them and securely occupies thetransfer position ÜC; at the same time, however, a sausage product W canbe picked up from the fork-shaped transfer device 136 by means of aconveyor element of the feeding machine B, described in greater detailin the following.

In the vicinity of the fork-shaped transfer device 136 a sensor 138 isattached, which detects the presence of a sausage product W.

For the transfer of the sausage products W from the delivery path AS ofthe clip machine C to the feeding machine B, the products W lie or aresuspended at the end of the delivery path AS in the transfer positionÜC, ready to be picked up there by the conveyor element of the feedingmachine B, described in greater detail in the following. In the process,the fork-shaped transfer device 136 expands the suspension element AE insuch a manner that a section of the suspension element AE runs tautlyover the two tines 136 a of the fork-shaped transfer device 136 in adirection perpendicular to the production flow direction PR of theproduction line FCB. This section is then detected by the conveyorelement of the feeding machine B in the manner described in thefollowing.

The two bearing devices 140 bearing the guide track 130 are each builtthe same so that in the following only one of the two bearing devices140, the bearing device 140 on the clip machine side, will be explainedin greater detail in connection with FIG. 4, in which it is presented ina side view. The bearing device 140 is comprised of three supportrollers 150, which in the circumferential direction of the guide track130 are arranged around it evenly divided, with only two (150′, 150″) ofthe three support rollers 150 being visible in the representation ofFIG. 4. The upper support roller 150′ of the visible two support rollers150 represented in FIG. 4 is mounted on ball bearings 152 freelyrotatable around an axis 154. The axis 154 is mounted on two supportwalls 156, 157, provided at each of the two front-facing ends of theaxis 154, which again are supported on the frame of the clip machine C.

The second, lower support roller 150″, visible in FIG. 4, is connectedto a shaft 158 that is torsion-proof and, together with this shaft,capable of rotating, is mounted to the support walls 156, 157 in ballbearings 152. The left end of shaft 158 continues parallel to the courseof the guide track 130 in a flexible shaft 151, as can be seen in FIG.2, and serves as the drive for the corresponding support roller 150″ inthe bearing device 140 next to the feeding machine.

Furthermore, as shown in FIG. 4, the right front end of the shaft 158,which forms a shaft extension 158 a, extends past the right support wall157. This shaft extension 158 a stands above a bevel or worm gear 159,rotatably engaged with the drive belt 122, which drives the lowersupport roller 150″. Furthermore, the lower support roller 150″ has aslightly larger external diameter than the upper support roller 150′.

It should be noted that the support roller 150, not visible in FIG. 4,which, with reference to FIG. 4, is behind the lower, driven supportroller 150″, is also built the same as the upper support roller 150′described previously.

The guide track 130 is provided with a hollow shaft 160, freelyrotatable relative to the guide track 130, in the area of the supportrollers 150, which are coaxial to the guide track 130 and are pushed onto the guide track. The hollow shaft 160 is mounted on the ball bearings152, which are pushed onto the rigid guide track 130 and supported byit. The left front-facing shaft end 160 a of the hollow shaft 160concludes with the left front-facing ends of the support rollers 150.The hollow shaft 160 projects over a ledge 130 c on the rigid guidetrack 130, which forms an axial support for the left ball bearing 152,and covers this ledge 130 c. As is apparent from FIG. 4, the rightfront-facing end 160 b of the hollow shaft 160 projects over the rightends of the support rollers 150. This right front-facing end 160 b ofthe hollow shaft 160 has an incline 160 c to the guide track 130, withwhich the hollow shaft 160 engages the annular recess 134 a of theconnecting threading cone 134.

Furthermore, as is apparent from FIG. 4, the support rollers 150 have aconcave surface contour 150 a in their axial center on their externalcircumferential surface and the hollow shaft 160 a corresponding convexsurface contour 160 d in their axial center on their externalcircumferential surface, with which the axial bearing of the hollowshaft 160 is supported. The hollow shaft 160 and the support rollers 150touch in a surface line, through which the hollow shaft 160 can bedriven via the drivable lower support roller 150″ that can also bedriven. One can see from this that the guide track 130 can rotate onlyin the area of the hollow shaft 160 within the two bearing devices 140;the other components are rigid and fixed in place.

In addition, the hollow shaft 160 has a thread-shaped circumferentialgroove 162 on its surface. This makes the passage of the suspensionelements AE, captured by the threading cone 134, through the bearingdevices 140 possible. By turning the hollow shaft 160 the thread-shapedcircumferential groove 162 assumes a transport function for thesuspension elements AE. The groove 162 is designed so the suspensionelements AE are transported in the direction of the feeding machine B.

Due to the design of the bearing devices 140 explained before, a securesupport of the guide track 130 is achieved, without hindering thetransport of the sausage products W on the transport belt 110 along theguide track 130. Furthermore, the angled section 130 b of the guidetrack 130 enables a sausage product W to slide by virtue of its ownweight along the angled section 130 b of the guide track 130 into thetransfer position ÜC, without a separate drive being necessary for this.In addition, the arrangement of the two bearing devices 140 in an angleprevents the guide track 130 from rotating unintentionally.

It should be noted that the two gears, driven by the drive motor 112,are so coordinated with one another that the sausage product W beingtransported by the conveyor belt 110 and the associated suspensionelement AE can be conveyed steadily along the delivery path AS. Thesausage product W, sliding along and held by its suspension element AEon the guide track 130, can slide securely and without any greatoscillating movement along the guide track 130, as explained in greaterdetail in the following, from the conveyor belt 110 at the end of thetransport path of the conveyor belt into the transfer position ÜC.

In the following, the feeding machine B will be explained in greaterdetail, making reference to FIG. 2 and FIGS. 5 to 12. The feedingmachine B has as its integral components a conveyor device 300, a turretdevice 400, a support device 500, a supply device 600 for the storagerods SP, a testing device 700 for the storage rods SP as well as aweighing device 800 for the sausage products W.

The conveyor device 300 has an endless conveyor 310 essentially alignedhorizontally, which, in this example, is formed by two endless chains310 a, 310 b, extending parallel in horizontal planes as much aspossible but at a distance from one another. These circulate around twopinion gears 312, arranged in pairs at the right end of the endlessconveyor 310 in FIG. 6, and two pinion gears 314, arranged in pairs aswell as driven on the left end of the endless conveyor 310 in FIG. 6(compare also FIG. 7). Both endless chains 310 a, 310 b of the endlessconveyor 310 circulate continuously during operation, i.e., a start/stopoperation of the endless conveyor 310 does not occur, as presented inthe state of technology at the beginning. The axes of the pinion pairs312, 314 are also horizontal, but aligned perpendicularly to the endlesschains 310 a, 310 b of the endless conveyor 310. The circulationdirection of the endless chains 310 a, 310 b is such that the conveyorelements 320, explained in greater detail in the following, on the upperstrand of the endless conveyor 310 are moved against the production flowdirection PR for manufacturing the sausage products W to the takeoverposition ÜB. In the lower strand, they move away from the takeoverposition ÜB in the production flow direction PR.

The conveyor elements 320 are spaced evenly along the endless conveyor310, fixed but removable. The conveyor elements 320 are attached firmlyto the endless chains 310 a, 310 b by means of two fixing rods 322extending crosswise to the endless chains 310 a, 310 b and arranged in acommon horizontal plane. Two identically constructed, triangular bearingwalls 324 are arranged on the fixing rods 322 in the space between theendless chains 310 a, 310 b, at least one of which can be moved axiallyalong the fixing rods 322. An axis of rotation 326 is mounted on thepoint of the triangle of the bearing walls 324, pointing above or below,of the endless chains 310 a, 310 b, depending on the position along thetransport path of the endless conveyor 310. Two congruently designedpartial hooks 328, capable of rotating, are arranged on the axis ofrotation 326 in the space between the bearing walls 324, i.e., betweenthe inner sides of the bearing walls 324 facing one another.

The partial hooks 328 can assume two different positions: a positionholding the sausage products W, in which they point vertically belowwith their hook bow, not described in greater detail, in a directionperpendicular to that of the horizontal plane extending from the twoendless chains 310 a, 310 b, and a standby position, in which they arefolded downwards, approaching 90°, against the direction of conveyanceof the endless conveyor 310. The partial hooks assume the positionholding the sausage products W, as will be explained in greater detailin the following, during the transport of the sausage products W alongthe lower strand of the endless conveyor 310 until the deposition of thesausage products W on a storage rod SP. Movement to the standby positioncauses the deposition of the sausage products W onto a storage rod SP,as will also be explained in greater detail in the following. In thestandby position the partial hooks 328 are pre-tensioned by at least oneelastic pre-tensioned element, also not described in greater detail.

At least one of the bearing walls 324 together with the associatedpartial hooks 328, can be displaced axially along the fixing rods 322and the axis of rotation 326. Preferably both bearing walls 324 togetherwith the respective associated partial hooks 328 can be displacedaxially along the fixing rods 322 and the axis of rotation 326, wherethey assume a compressed position, in which they are arranged betweenthe endless chains 310 a, 310 b, at least approaching the middle of therods 322 or the axis of rotation 326, and a separated or spreadposition, in which the bearing walls 324 abut the inner sides of theendless chains 310 a, 310 b with their external sides and the partialhooks 328 adjacent the inner sides of the bearing walls 324.Furthermore, a tension spring, not described in greater detail, can beprovided, which moves the bearing walls 324 and the partial hooks 328,pre-tensioned, into the compressed position.

At the point of the triangle of the bearing walls 324 opposite the baseof the conveyor elements 320, bearing and guide rollers 330 capable ofrotating are arranged, depending on the position of a conveyor element320 along the transport path of the endless conveyor 310, pointing aboveor below, which causes the axial movement of the bearing walls 324 orthe partial hooks 328 by engaging with corresponding guide tracks. Inthe process, the bearing and guide rollers 330 can cause not only bothmovements, i.e., the compression and the separation movements, but alsoforcibly cause only the separation movement against the action of thetension spring. Of course, the combination of a tension spring and bothforcible movements is also possible.

A trapeze-shaped spreading bar 332 is provided on the side of theconveyor device 300 pointing downwards along the guide track for theforcible guidance of the bearing and guide rollers 330. The spreadingbar 332 extends in the horizontal space between the two pinion pairs312, 314. The spreading bar 332 is provided with a triangular section332 a on its right and left front-facing ends. On the sloping externaledges of the two triangular sections 332 a of the spreading bar 332 aswell as the spreading bar 332 itself a guide track 332 b is provided foreach, along which the bearing and guide rollers 330 run. Upon reachingthe right triangular section 332 a of the spreading bar 332, the bearingand guide rollers 330 engage the guide track 332 b and thus are pushedapart. As a result, the bearing walls 324 connected to the guide rollers330 are also forcibly pushed from the compressed position into theseparated position and kept in this position until the conveyor elements320 reach the left triangular section 332 a of the spreading bar 332.

Besides their guidance function, the bearing and guide rollers 330 serveto carry the conveyor elements 320 loaded with sausage products W duringtheir path along the lower strand of the endless conveyor 310. As aresult, sagging of the endless conveyor chains 310 a, 310 b is avoided.This is attained through an alignment of the bearing and guide rollers330 corresponding to the incline of the guide track 332 b (cf. FIG. 7).

Various elements are provided for the execution of the rotational orpivoting movement of the partial hooks 328, which will be explained inthe following, in particular, with reference to FIGS. 6 and 7. It shouldbe noted that FIG. 7 represents the inner side of the conveyor elements320.

The partial hook 328 of a conveyor element 320, represented in FIG. 7 indetail, has a locking recess 328 a which is arranged on its externalcircumferential surface in the area of its axis of rotation 326 and, asis apparent in FIG. 7, which points to its hook tip, not described ingreater detail. Furthermore, on the bearing wall 324 of the conveyorelements 320, a blocking pawl element 336 with a blocking pawl 336 a isarranged on the fixing rod 322 of the conveyor elements 320, capable ofpivoting and pointing in the direction of conveyance. The blocking pawl336 a, arriving in the position of the partial hooks 328 holding thesausage products W, engages reversibly with the recess 328 a and locksthe particular partial hook 328 in this position. The blocking pawlelement 336 is pushed into this locking position by a leaf spring 338provided on the respective bearing wall 324.

In order to trigger this locking, the blocking pawl element 336 isprovided with a trigger nose 336 b on the end opposite the blocking pawl336 a, which is actuated by a release unit 350, explained in greaterdetail in the following. Upon release, the blocking pawl element 336 ispivoted clockwise so that the blocking pawl 336 a disengages from therecess 328 a of the partial hooks 328. Due to the action of theaforementioned elastic pre-tensioned element, the specific partial hook328 is pivoted or folded back then into the standby position. In orderto become upright again a hook straightening element 340 is provided inthe area of the right, driveless pinion pair 312 on the endless conveyor310. This hook straightening element 340 is arranged on the endlessconveyor 310 so that the partial hooks 328 of a conveyor elements 320are straightened once again by a rod, traveling against a curved trackof the straightening element 340, before reaching the takeover positionÜB.

The conveyor device 300 has, furthermore, a release unit 350. Thiscontains a release screw 352 forming a control element, which can bedisplaced back and forth along a horizontally aligned rotary spindle354. The rotary spindle 354, as can be gathered specifically from FIG.6, is arranged in the area of the spreading bar 332 between the twoforcible guide tracks 332 b of the spreading bar 332. The release screw352 can be displaced in reverse along the rotary spindle 354 from theleft triangular section 332 a of the spreading bar 332 to the righttriangular section 332 a of the spreading bar 332. As mentioned already,the release screw 352 allows the partial hooks 328 of the conveyorelements 320, during the contact of the trigger nose 336 b of theblocking pawl 336 with the release screw 352, to go from their positionholding a sausage product W into the pivoted, folded, standby positionto the rear.

A turret device 400 is arranged on the end of the feeding machine B tothe rear, i.e., on the left end of machine B with reference to FIG. 2.Its principal component, approaching circular in shape in the overheadview, is a tool disc 410 which, with reference to FIG. 2, is alignedvertically, with its center axis running coaxially with an imaginarycentral longitudinal axis of the endless conveyor 310. On the tool disc410 there are four pocket- or pot-shaped clamping units 414 attached,uniformly arranged in a circumferential direction, on the side pointingaway from the endless conveyor 310, near the outer circumference inaxis-parallel alignment to the center axis. One end of a storage rod SPcan be clamped in these so they point with their free end in thedirection of the clip machine C. As is apparent from FIG. 9, theclamping units 414 are arranged on one side of the tool disc 410,pointing away from the endless conveyor 310.

A ring gear 416 is provided on the outer circumference of the tool disc410, which is engaged with a drive gear wheel, described in greaterdetail, of a drive unit, also not described in greater detail. On theinner circumference side of the central opening 412 a cam-track 412 a isprovided, which serves the actuation of the support device 500 explainedin greater detail in the following. The cam-track 412 a, moreover, hasfour recesses, provided in an even angle division, along the innercircumference of the central opening 412, forming discontinuities 412 b.

By means of the tool disc 410, the clamping units 414 can assume fourpositions: a first position, in which a clamping unit 414 with a storagerod SP can be loaded, which is fed from the supply device 600, explainedin greater detail in the following, for the storage rod SP; a secondposition, which is a testing position, in which a storage rod SP mountedin the clamping unit 414 is checked by the testing device 700 for itspresence and/or its straightness; a loading position (third position),in which individual sausage products W can be loaded on the storage rodSP; and a delivery position (fourth position), from which a storage rodSP loaded with sausage products W for further processing of the sausageproducts W can be removed from the feeding machine B. These fourpositions are arranged in a division of 90° around the endless conveyor310. In the following, the individual positions will be explained ingreater detail in connection with the feeding device 600 for the storagerods SP, the testing device 700 and the description of the process forloading a storage rod SP with sausage products W.

The support device 500 has basically a support gripping member 510,which is located about in the middle between the two pinion pairs 312,314, as can be seen in FIG. 6. The support gripping member 510 acts in asupport position to prevent a storage rod SP from bending in the loadingposition. In addition, the support gripping member 510, in a verticalplane that intersects the imaginary central axis of the endless conveyor310, is pivotable on a swiveling axis 516, which is aligned parallel tothe endless conveyor 310 and is supported in an appropriate manner onthe frame of the feeding machine B, rotatably fastened and sticking outfrom it essentially perpendicularly downwards. The support grippingmember 510 can be moved reversibly around this swiveling axis 516 from awaiting position into the supporting position.

The support gripping member 510 is provided with a hook element 518 onits free end opposite the swiveling axis 516, which can be reversiblymoved or pivoted from a waiting position into a support grippingposition by means of a pneumatic cylinder. The hook element 518 assumesthe latter position, when the support gripping member 510 is in thesupporting position. This swivel movement of the hook elements 518ensures that the hook element 518, during the movement of the supportgripping members 510 into the supporting position, can travel under theparticular storage rod SP without impediment. Through the swivelmovement of the hook element 518 this comes reversibly into contact withthe storage rod SP.

Moreover, the support device 500 has a locking bar 520. This extendsaxis-parallel to the endless conveyor 310. At one end is the locking bar520 connected with the support gripping member 510 in such as mannerthat it can be moved reversibly together with the support grippingmember 510 from the waiting position into the supporting position, butcan be displaced axially vis-à-vis the support gripping member 510. Atits other end is the locking bar 520, engaged with the cam-track 412 aof the tool disc 412 via a cam 522 firmly attached to it. In the waitingposition the cam 522 is in one of the recesses 412 b of the cam-track412 a. As a result, the support gripping member 510 is kept in thewaiting position. The recesses 412 b identify the supporting positionand the waiting position of the support gripping member 510.

The movement of the support gripping member 510 from the waitingposition into the supporting position is also triggered by the releasescrew 352. To do this, the release screw 352, coming from the left withreference to FIG. 6, runs past the support gripping member 510 in thewaiting position. As soon as the release screw 352 has passed thesupport gripping member 510, the release screw 352 pulls the locking bar520 in an axial direction to the right with reference to FIG. 6.Consequently, the cam 522 disengages from the recess 412 b of thecam-track 412 a so that the support gripping member 510, as the resultof its own weight, falls below into the supporting position. A drive tosupport this movement can be provided, which, for example, can be formedby a pre-tensioned torsion spring. Upon reaching the supporting positionthe cam 522 engages through a spring, not described in greater detail,with the next recess 412 b of the cam-track 412 a against the directionof rotation of the tool disc 410. By turning the tool disc 410 in aclockwise direction, when observed in the overhead view of the FIG. 6,approximately 90° at least, the support gripping member 510, as a resultof the engagement of the cam 522 with the recess 412 b, in which itarrived upon reaching the supporting position, is taken back into thewaiting position.

The feeding device 600 for the storage rods SP, to stock and feedstorage rods SP for the turret device 400, is represented schematicallyin FIG. 11. The feeding device 600 is, with reference to the feedingmachine B represented in FIG. 2, arranged before the endless conveyor310, i.e., again with reference to FIG. 2, to the left of the endlessconveyor 310. The device 600 contains at least one eccentric unit 610,at least two conveyor rods 620 as well as at least two fixed supportelements 630. A conveyor rod 620 and a fixed support rod 630 togetherform a conveyor pair, which is arranged in the area of the front-facingends of the feeding machine B in such a way that the centrallongitudinal axes of the rods 620, 630 run at least close toperpendicular to the imaginary central longitudinal axis of the endlessconveyor 310, and the rods 620, 630 of the feeding machine B stick outto the left. The rods 620, 630 can be arranged slightly inclined ifneeded, as shown in FIG. 11, in order to assist the conveying processfor the storage rods SP.

The fixed support elements 630 are arranged parallel to one another, sospaced that the storage rods SP deposited perpendicularly to them areheld securely. As already mentioned, the support rods 630 are alignedperpendicular to the axes of the clamping units 414 of the turret device400. Their feeding machine side ends extend to the tool disc 410.

The conveyor rods 620 are attached parallel to the fixed support rods630 and in their immediate vicinity. They are aligned so that theirfeeding machine side ends, during the movement components generated atleast close to horizontal by the eccentric unit 610, reach at the mostthe feeding machine side ends of the fixed support elements 630. Theconveyor rods 620 have a uniform division, which was generated byrecesses 622 or elevations protruding above, into each of whichprecisely one storage rod SP fits.

The conveyor rods 620 are driven by the eccentric unit 610. This has afirst eccentric 612 that is aligned axis-parallel to the clamping units414 and is arranged beneath the conveyor rod 620 in such a way that itsouter circumference or eccentric surface is in contact with the conveyorrod 620. During the rotation of the eccentric 612 the conveyor rod 620executes an intermittent movement. Due to the choice of the eccentric612, this movement is so designed that the supply of storage rods SPlying on the rigid support elements 630 is transported step by step bythe conveyor rods 620 around a specific path to the clamping units 414of the turret device 400.

In the current example, a second eccentric 614 is provided in addition,which is also aligned axis-parallel to the clamping units 414 and via abelt drive 604, not described in greater detail, is connected with thefirst eccentric. At the same time, the eccentric unit 610 of the ringgear 416 of the tool disc 410 can be derived as needed by inserting agear, not described in greater detail. Due to the drive of the eccentricunit 610 via the ring gear 416 of the turret device 400, during thedelivery of a storage rod SP filled with sausage products W from aclamping unit 414 of the turret device 400 holding this storage rod SP,a coordinated feeding of an empty storage rod SP to a clamping unit 414standing ready to take up this storage rod SP can occur. In theexecution example shown, with a quarter-turn of the tool disc 410,precisely one conveyor process or conveyor cycle executed by theconveyor rods 620 occurs for the continued transport of the storage rodsSP. As a result, the conveyor movement of the eccentric unit 610 iscoordinated timewise with the turning movement of the tool disc 410.Moreover, only one drive is necessary for the turning of the tool disc410 and the operation of the eccentric unit 610.

FIGS. 10 a to 10 d show a testing device 700 for checking the presenceand the correct positioning of a storage rod SP in the clamping unit 414of the turret device 400. The testing device 700 is arranged on thefront-facing end of the feeding machine B opposite the turret device400. It has basically a pot-shaped, cylindrical element 710 as well as amonitoring unit 712. The pot-shaped element 710 may be reversibly movedout, as represented in FIGS. 10 a to 10 d, perpendicular to thefront-facing side of the housing wall, not described in greater detail,of the feeding machine B by means of a drive, also not described ingreater detail. The inner diameter of the pot-shaped element 710 isgreater than the external diameter of a storage rod SP so the pot-shapedelement 710 can grip over a storage rod SP. In the process, the bottom710 a of the pot-shaped element 710 forms a stop for the storage rod SP.

On the bottom 710 a of the pot-shaped elements 710 oriented toward thestorage rod SP a short tapered portion 710 b is provided, to which theback half 710 c of the pot-shaped elements 710 is connected, which has acorresponding smaller diameter. Likewise, in this execution example, onthe bottom 710 a oriented toward the storage rod SP, three sensors 712a, 712 b, 712 c of the monitoring unit 712 are arranged in a planeperpendicular to the central axis of the pot-shaped elements 710. Thefirst sensor 712 a monitors the front part of the pot-shaped element710, greater in diameter, the second and third sensors 712 b, 712 c theback part of the pot-shaped element 710, smaller in diameter. As aresult, the monitoring unit 712 can chart the path covered by thepot-shaped elements 710 and thus determine if a storage rod SP ispresent and if it is correctly positioned. This is explained in thefollowing in connection with FIGS. 10 a to 10 d.

In the initial position corresponding to FIG. 10 a, the pot-shapedelement 710 is located so far into the housing wall of the feedingmachine B that it is arranged flush with its front side. Sensor 712 cregisters the front part of the pot-shaped element 710, greater indiameter. The two other sensors 712 a, 712 b record the back part of thepot-shaped element 710, smaller in diameter.

The case of the correct positioning of a storage rod SP is representedin FIG. 10 b. The pot-shaped element 710 has emerged from the housingwall of the feeding machine B and surrounds the storage rod SP until ittouches the bottom 710 a of the element 710. The back end of thepot-shaped element 710 has disappeared from the sensor zone of thesensors 712 a. Likewise, the front part of the pot-shaped element 710,greater in diameter, has moved out of the detection zone of the sensor712 c. Only the sensor 712 b is still registering the back part of thepot-shaped element 710. The resulting sensor signals indicate that thepot-shaped element 710 is moving around a permissible path from itsinitial position and is halted by a correctly inserted storage rod SP,as soon as the bottom 710 a reaches it.

In FIG. 10 c a tilted or bent storage rod SP mounted in a clamping unit414 is indicated. The tilted or bent rod SP bumps against the outer edgeof the pot-shaped element 710, with this not being able to emerge farenough from the housing wall of the feeding machine B as a result. Inthe case presented here, the pot-shaped element 710 has traveled outfrom the housing wall by a path that is short, as shown in FIG. 10 b.The back end of the pot-shaped element 710 has disappeared from thesensor zone of the sensor 712 a, but the sensor 712 c still registersthe presence of the pot-shaped element 710, just as sensor 712 b does.This sensor result indicates clearly that a tilted or bent storage rodSP is present. This rod SP is discarded from the feeding machine B.

If no storage rod SP is mounted in a clamping unit 414, as portrayed inFIG. 10 d, the pot-shaped element 710 emerges so far out of the housingwall of the feeding machine B that it cannot be detected by any of thesensors 712 a, 712 b, 712 c. In this case a new storage rod SP is fedinto and inserted by turning the tool disc 410 of the testing device700, and the test is repeated.

The weighing device 800 shown in FIG. 5 serves the arbitrary or regularremoval and weighing of a sausage product W from the ongoing productionin order to check its weight, that is, to check the filling of thecorrect filling material quantity. It is located beneath the frontspreading bar section 332 a. The weighing device 800 is comprised of aweighing lever 810, a drive shown in this representation as ahydraulic/pneumatic cylinder 820, and a weighing cell, not depicted.

The weighing lever 810 consists of a flat bar, preferably made of metal,that is angled in its main plane, which basically runs parallel beneaththe spreading bar 332, approaching ca. 90° in the center. In the processit forms two ends, a front, free end 812 and a back end 814, which isconnected with the axis of rotation of the weighing lever 810 so it canrotate. The axis of rotation is in the immediate vicinity of one of theendless chains 310 a, 310 b, arranged on its external side and alignedperpendicularly to the spreading bar 332. The cylinder 820 is parallel,arranged next to the endless conveyor 310. The piston rod 822 isconnected by its retractable end with the back end 814 of the weighinglever 810 so that, upon entering the cylinder 820 with its front end812, it swings into the transport path of the sausage product W. In thisswung-in position, or also the weighing position, the front end 812 isaligned parallel to the direction of conveyance and points with its freeend in the direction of the takeover position ÜB. In this position asausage product W can be transferred from a conveyor element 320 to theweighing lever 810. If the piston rod 822 has emerged from the cylinder,the weighing lever 810 swings out of the direction of conveyance. Insuch an attainable final or standby position, the back end 814 of theweighing lever 810 is aligned parallel to the direction of conveyance,while the front end 812 is perpendicular to the side oriented towardthis. The weight of the sausage product W presses the weighing lever 810onto a weighing cell, not depicted, which then determines the exactweight of the sausage product W.

The circulation rate of the endless conveyor 310 is determined in itsbase setting by the feed rate of the flexible suspension elements AE inthe clip machine B. This feed rate is detected by a control device,which derives the control for the circulation rate of the endlessconveyor 310 from this. Since the circulation rate of the conveyorelements 320 is subject to disturbances, for example, disturbances asthe result of wear and tear occurring or as a result of swingingmovements of the sausage products W, which can lead to fluctuations inthe circulation rate of the conveyor elements 320, it is advantageous ifregulation is superimposed on the control of the circulation rate. Theregulation can occur based on various regulating and reference inputvariables. For example, with regulation superimposed on the control ofthe circulation rate, it can be provided that the time for attaining atakeover position ÜB in the feeding machine B is regulated by theconveyor elements 320 for the continuous takeover of sausage products W.Thus it can be assured that a product W is always in the takeoverposition ÜB at the takeover time.

The actual regulation itself again can occur in different ways. Thus theregulation of the circulation rate of the conveyor elements 320 can becarried out, based on the deviation tendency of the interval of theconveyor elements 320 from the predetermined position on the transportpath of the conveyor elements. For, by determining the deviationtendency, the influence of almost all disturbances on the circulationrate of the conveyor elements can be measured and corrected. Thecirculation rate of the conveyor elements is increased with an increasein the deviation tendency and reduced with the decrease in the deviationtendency.

FIG. 12 illustrates the determination of the deviation tendency, whichenters into in the regulation of the time the takeover position ÜB isreached by the conveyor elements 320. To do this, the distance ‘x’ of aconveyor element 320 from the predetermined position is measured, hereÜB, and compared with the distance ‘y’ of the following conveyor element320 from the predetermined position ÜB. In the case represented, thetakeover position ÜB is selected as the predetermined position.Furthermore, in the case represented, the center of a partial hook 328is adopted as the measuring point. However, every other point of theconveyor element 320 can be used. Selectively the distance ‘y’ can alsobe the distance of the same conveyor element 320 from the predeterminedposition ÜB in the following circulation. In both instances a tendencycan be determined by repeat measurement and a comparison of thedifferences, which arise, for example, due to slippage, wear and tear orstrong swinging movements of the sausage products W suspended from theconveyor elements 320. The measurement of intervals and the comparisonof the differences can occur continuously or at selected times. Bydetermining the deviation tendency one obtains a reliable statementabout the progression of the circulation rate and can have it flow intothe regulation of the time the takeover position ÜB is reached.

In FIG. 13 one can see a block diagram of the control of the circulationrate of the conveyor elements 320 and the regulation superimposed on itof the time the takeover position ÜB is reached. The circulation rate orbase circulation rate of the conveyor elements 320 derived from the feedrate of the suspension elements AE flows as a setpoint value into thecontrol circuit. With the aid of the deviation tendency explained inFIG. 12, the time the takeover position ÜB is reached can be preciselyregulated.

Due to the control, first the circulation rate of the conveyor elements320, corresponding to the feed rate or the feeding speed of thesuspension elements AE, is set as the base setting, which in the presentexample corresponds exactly to the production rate, since precisely onesuspension element AE is fastened to each sausage product W. In the casementioned already, where the suspension elements AE are attached to eachsecond, third, etc. sausage product W, a corresponding adjustmentoccurs.

In a completely disturbance-free flow of the overall process theaforementioned control would suffice. Due to various disruptive factors,such as slippage or wear and tear on the endless conveyor 310 as well asstrong swinging movements of the sausage products W suspended from theconveyor elements 320, the circulation rate changes, resulting in adelay in the time the takeover position ÜB is reached. However, toachieve a correct transfer/takeover of the sausage products and attaincontinuous circulation of the conveyor elements 320, this time should beclosely coordinated with the feed rate of the suspension elements AE.

To this end, a regulation of the time the takeover position ÜB isreached is superimposed on the control of the circulation rate, intowhich, as described above, the measured deviation tendency flows. Due tothis regulation, deviations in the circulation rate, which are reflectedin the deviation tendency, are compensated for. The circulation rate ofthe conveyor elements is increased with an increase in the deviationtendency and reduced with the decrease in the deviation tendency. Tothis end, the momentary actual value of the time the takeover positionÜB is reached is compensated for by an error measurement as a feedbackvariable to the setpoint value. The difference formed produces theregulating error, which is corrected via the deviation tendency actingas the regulating variable. In addition, through regulation it ispossible to compensate for other disruptive factors that do notoriginate in the production process, such as fluctuations in current ormechanical influences that change the circulation rate. A continuouslysmooth takeover of products W without a start/stop operation isachieved, with the aforementioned disruptive factors being minimized oreliminated.

Independent of the control of the circulation rate with superimposedregulation of the time the takeover position ÜB is reached describedabove, a disconnecting procedure, which undertakes a controlleddisconnecting of the individual components of the production line FCB inthe event of a disturbance, is superimposed on the overall control ofthe production line FCB. During the disturbance-free operation a releasesignal on the filling machine F is on. If a disturbance in the feedingmachine B occurs, then the release signal of the filling machine F isremoved, and it stops any further feeding of filling material to theclip machine C. The clip machine completes the product currently inprocess and then also stops its operation. If a sausage product Whappens to be in the transfer position ÜC, then this is removed from thetransfer or takeover position ÜC or ÜB of the current conveyor element320, and the feeding machine B stops the operation of the endlessconveyor 310. If a sausage product W is removed by a conveyor element320 from the transfer or takeover position ÜC/ÜB, then the operation ofthe endless conveyor 310 is stopped before the conveyor element 320 hasreached the storage rod SP to be fed.

One proceeds in the same way when a clip signal is lacking. First therelease signal is removed from the filling machine F, which consequentlystops its operation. The clip machine C completes the product currentlyin process and then also stops its operation. Then the feeding machine Bhalts its operation according to the procedure depicted above.

The disconnecting procedure described makes it possible to shut off theproduction line FCB at any time in a controlled and safe manner duringthe occurrence of a disturbance. In addition, the method ofdisconnecting the components makes it possible to have a problemlessrestart of the production line FCB without the risk of a repeatdisturbance from products still to be found in the production line FCB.

The production flow of the production line from the manufacturing to thedeposition of a sausage product W happens as follows:

A flowable filling material, here sausage meat, is fed from the fillingmachine F via the filling pipe FR to the clip machine C. Around thefilling pipe FR there is the supply of tubular wrapper material (notshown). This is filled in the known manner. Through the simultaneousplacing and closing of two clips in the clip machine C, a sausageproduct W that has just been filled is completed and, a starting pointis created for a product W that has yet to be filled. During the placingand closing of the clips a suspension element AE in the form of a threadloop is fed into the clip finishing the sausage product W via thefeeding device ZE and is fastened with this clip to the sausage productW.

After a sausage product W has been finished by placing and closing theclips, attaching a suspension element AE and separating the sausageproduct W from the supply of the other wrapper material in the clipmachine C, it is transported with the end opposite the suspensionelement AE facing ahead on the conveyor belt 110 of the delivery pathAS, which runs parallel to the guide track 130, from the clip machine Cin the direction of the feeding machine B. In the process, the loop ofthe suspension element AE is captured by the threading cone 134 andguided via the guide track 130. While passing through the bearingdevices 140 the suspension element AE is forcibly guided by the rotationof the hollow shaft 160 and the thread-shaped circumferential groove 162applied to its surface through the bearing devices 140. At the end ofthe conveyor belt 110 the sausage product W then falls below by means ofgravity from the conveyor belt 110, where it continues on, suspended bythe suspension element AE, along the guide track 130. With thesuspension element AE it slides along through the angled part of theguide track 130 set up below until it has reached the transfer positionÜC at the fork-shaped element 136. If there is a sausage product W inthe transfer position ÜC, this is detected by the sensor 138.

The partial hooks 328 of a conveyor element 320, located right beforethe takeover position ÜB, are moved out of the folded back position bymeans of the hook straightening element 340 into the position holding asuspension element AE. At the same time, the partial hooks 328 are inthe position where they are lying next to one another. As a result,during the continuous further conveyance of the conveyor elements 320,the partial hooks 328 can travel through the fork-shaped element 136,thus picking up the sausage product W via the sections of the suspensionelements AE lying crosswise over the tines 136 a as well as transportingit into the feeding machine B.

On its transport path along the endless conveyor 310 the conveyorelement 320 then passes the spreading bar 332. This presses with itsfront triangular section 332 a between the bearing and guide rollers 330of the conveyor elements 320 and thus presses the bearing walls 324 andthe partial hooks 328 of the conveyor elements 320 apart. In theprocess, the bearing and guide rollers 330 glide along on the inclinesof the guide tracks 332 b of the spreading bar 332 and are spread untilthe end of the spreading bar 332 or the rear triangular section 332 ahas been reached.

By spreading the partial hooks 328 the loop of the suspension elementsAE is opened far enough that it can be guided over the storage rodduring the further conveyance of the conveyor element 320. Incoordination with the filling level of the storage rods SP the releasescrew 352 is guided against the direction of conveyance of the conveyorelements 320 or the sausage products W on the spindle 354, which islocated quite close to the lower strand of the endless conveyor 310 andparallel to it. Upon reaching the release screw 352, the conveyorelement 320 with its trigger nose 336 b glides over the release screw352. As a result, the mechanism for turning over or folding back thepartial hooks 328 from the position holding the sausage products W istriggered into the release position. By turning away the partial hooks328 the sausage product W is released and deposited on the storage rodSP in the predetermined position (cf. FIG. 6 a).

Once a specific filling level of the storage rod SP has been reached,for example, 50% of the storage rod SP is filled with sausage productsW, then the release screw 352 triggers the support gripping member 510located in this position, which is in the waiting position at the startof the filling of a storage rod SP. This moves out of the waitingposition into the supporting position. The triggering occurs by therelease screw 352 pulling the locking bar 520 out of the recess 412 b inthe cam-track 412 a. By means of gravity as well as an available drive,as needed, the support gripping member 510 is moved out of the waitingposition into the supporting position, and the locking bar 520 engagesthe next recess 412 b.

After the storage rod SP is completely filled, the tool disc 410 isturned by the drive of the ring gear 416 about 90° in a clockwisedirection, as seen from the orientation in FIG. 2. The support grippingmember 510, which is still being held by the locking bar 520 held in therecess 412 b, is moved back into the waiting position.

An empty storage rod SP located in the next clamping unit 414 is broughtinto the filling position, and the filled rod SP is removed from thecorresponding clamping unit 414, for example, transported away by acorresponding conveyor device. During the turning of the tool disc 410,a filled storage rod SP is moved out of the filling position, while anempty rod SP is moved at the same time into the filling position. Due toa coupling of the eccentric unit 610 of the feeding device 600 to thedrive for the tool disc 410, empty storage rods SP are transported intothe turret unit 400. With the correspondingly designed coupling, duringthe removal of a filled storage rod SP, exactly one new storage rod SPis inserted from the supply of the storage rods SP lying on the supportrods 630 into the testing position in the turret 400. As a result, anas-needed feeding of empty storage rods to the feeding machine,coordinated with the production flow, is achieved.

With the turning of the tool disc 410, the storage rod fed into aclamping unit 414 from the feeding device 600 for empty storage rods SPin the previous cycle is transported from this feeding or loadingposition into the testing position. There the test takes place to see ifa storage rod SP is present at all, is correctly mounted and/or is bent.During the next cycle the storage rod SP located in the testing positionis guided into the loading position for loading or feeding with sausageproducts W. Then, as described, the loaded storage rod SP is deliveredinto the position for removal from the feeding machine B.

In order to ensure a consistently uniform quality, it is possible toweigh and check individual sausage products W during the ongoingproduction to see if the correct quantity of filling material wasinserted into the wrapper material. The weighing device 800 describedabove, using FIG. 5, serves this purpose. During the normal productionflow the weighing lever 810 of the weighing device 800 is in the standbyposition described above. If a sausage product W is to be weighed now,the piston rod 822 is introduced in the weighing device by actuating thecylinder 820. In the process, the weighing lever 810 is swung into thedirection of conveyance of the sausage products W so that the front endis aligned parallel to this and points to the transfer point ÜC of theclip machine. From the conveyor element 320, which has just taken asausage product W over from the takeover point ÜB, the product W istransferred to the weighing lever. By a repeat actuation of the cylinder820 through the introduction of the piston rod 822, the weighing lever810 is conveyed back into the standby position. The sausage product W,suspended from the weighing lever 810, activates the weighing cell,which determines the weight.

In case of a disturbance, no matter what kind it is, the disconnectingprocedure, already described above, intervenes, assuring a risk-freestoppage of the components of the production line as well as a risk-freerenewed startup.

In conclusion, it should also be noted that the invention is not limitedto the executions depicted in the Figures. Therefore, another transportmeans instead of a chain can be selected for the endless conveyor, forexample, a toothed belt, which does not have to be executed as twoparallel belts running next to one another. The turret can contain moreor less than four clamping elements just as the feeding device cancontain more than two rigid support elements and conveyor rods.

The invention claimed is:
 1. Production line for the manufacturing ofsausage-shaped products, which receive a flowable filling material in atubular wrapper material, the production line comprising: a clipmachine, in which the wrapper material filled with the filling materialis divided into portions into individual sausage-shaped products byplacing closing clips and is separated from the supply of the remainingwrapper material, enabling at least one flexible suspension element tobe applied to the sausage-shaped product during the placing of theclosing clips, while the product is fed in a timed manner into the clipmachine, the clip machine comprising: at least two sealing tools,movable relative to one another between a opening position and a closingposition for the placing and closing of clips on a sausage-shapedproduct; at least one clip storage device from which clips can be fed toa sealing tool; a storage device for storing a supply of wrappermaterial; a separation device for separating an individual sausageproduct from the supply of wrapper material; a filling pipe for thefeeding of filling material; a delivery device for deliveringsausage-shaped products from the clip machine along a delivery path forthe sausage-shaped products; and a feeding device for flexiblesuspension elements from which said at least one suspension element canbe fed, the delivery path for the sausage-shaped products including afirst transport path for the sausage-shaped products and, parallel tothe first transport path for the sausage-shaped products, a transportpath, separate from the first transport path for the sausage-shapedproducts, for the suspension elements connected to a sausage-shapedproduct; a feeding machine supplying storage rods individually forfurther processing of the sausage-shaped products and having conveyorelements, circulating continuously along a transport path, which is usedto supply the storage rods with sausage-shaped products, the conveyorelements take the sausage-shaped products proceeding out of the clipmachine into a takeover area provided between the clip machine and thefeeding machine; and a control device configured to control at least thecirculation rate of the conveyor elements of the feeding machine on thebasis of a control variable derived from the clip machine; wherein thecontrol device is configured to override a regulation on the control ofthe circulation rate, and wherein the regulation is configured toregulate the circulation rate of the conveyor elements on the basis ofthe deviation tendency of the distance of the conveyor elements from apredetermined position on the transport path of the conveyor elements.2. A production line according to claim 1, where the control device iscapable of coordinating at least the operation of the feeding machineand the clip machine with one another.
 3. A production line according toclaim 1, where the transport path between the clip machine and thefeeding machine is interrupted.
 4. A production line according to claim3, where the interruption of the transport path between the clip machineand the feeding machine is formed by the takeover area, in which thetransport path of the clip machine ends in a transfer position and inwhich the conveyor elements of the feeding machine, in a takeoverposition in regard to the feeding machine, take over individually thesausage-shaped products that are in the transfer position in regard tothe clip machine.
 5. A production line according to claim 1, furthercomprising: a filling machine capable of feeding filling material to thewrapper material in the clip machine, the filling machine being arrangedupstream from the clip machine in the production line.
 6. A productionline according to claim 1, where the first transport path for thesausage-shaped products and the transport path for the suspensionelement associated with a sausage-shaped product ends in a transferposition, in which a sausage-shaped product can be kept ready in adefined manner for the transfer for further processing.
 7. A productionline according to claim 6, the clip machine further comprising: at leastone transfer device having a fork-shaped design on its end oriented tothe clip machine and positioned at the transfer position for thetransfer of the sausage-shaped products.
 8. A production line accordingto claim 6, the clip machine further comprising: at least one sensorcapable of detecting the presence of a sausage-shaped product andpositioned at the transfer position.
 9. A production line according toclaim 1, where the transport path for the suspension elements contains aguide track having a circular cross-section.
 10. A production lineaccording to claim 9, where the guide track has at least two bearingdevices.
 11. A production line according to claim 10, where the bearingdevices each include three support rollers, arranged in a uniformdistribution in the circumferential direction of the guide track.
 12. Aproduction line according to claim 10, where the guide track has adrivable hollow shaft in the area of the bearing devices, the hollowshaft being arranged coaxially to the guide track.
 13. A production lineaccording to claim 12, where the guide track includes a thread-shapedcircumferential groove in the area of the bearing devices.
 14. Aproduction line according to claim 13, where the thread-shapedcircumferential groove is positioned about the hollow shaft.
 15. Aproduction line according to claim 11, where the guide track in the areaof the support rollers has a convex surface, and the support rollershave a corresponding concave surface.
 16. A production line according toclaim 10, where the guide track is angled between the two bearingdevices.
 17. A production line according to claim 11, where at least oneof the support rollers of each bearing device is drivable.
 18. Aproduction line according to claim 9, where the guide track includes athreading cone on the clip machine side end.
 19. A production lineaccording to claim 9, the clip machine further comprising: a catchdevice for the suspension elements connecting to the clip machine end ofthe guide track, and extending from the guide track into the closurearea of the sealing tools.
 20. A production line according to claim 19,where the catch device is angled and has a cone-shaped catch point. 21.A production line according to claim 9, where the suspension elementsare thread loops.
 22. Production line for the manufacturing ofsausage-shaped products, which receive a flowable filling material in atubular wrapper material, the production line comprising: a clipmachine, in which the wrapper material filled with the filling materialis divided into portions into individual sausage-shaped products byplacing closing clips and is separated from the supply of the remainingwrapper material, enabling at least one flexible suspension element tobe applied to the sausage-shaped product during the placing of theclosing clips, while the product is fed in a timed manner into the clipmachine; a feeding machine supplying storage rods individually forfurther processing of the sausage-shaped products and having conveyorelements, circulating continuously along a transport path, which is usedto supply the storage rods with sausage-shaped products, the conveyorelements take the sausage-shaped products proceeding out of the clipmachine into a takeover area provided between the clip machine and thefeeding machine; and a control device configured to control at least thecirculation rate of the conveyor elements of the feeding machine on thebasis of a control variable derived from the clip machine; wherein thecontrol device is configured to override a regulation on the control ofthe circulation rate, wherein the regulation is configured to regulatethe circulation rate of the conveyor elements on the basis of thedeviation tendency of the distance of the conveyor elements from apredetermined position on the transport path of the conveyor elements,wherein the sausage-shaped products have a flexible suspension elementon one of their ends, which can be guided via a storage rod and whichcan assume a closed and an open embodiment; the feeding machinecomprising: a device for mounting one end of a storage rod that is freeat the other end, and a device for feeding the sausage-shaped products,suspended from their suspension elements, one after the other to thestorage rod and, under guidance of the suspension elements, depositingthe suspension elements over the free end of the storage rod at spacedpositions along the storage rod, the device for feeding thesausage-shaped products comprising: an endless conveyor with a strandrunning parallel to the storage rod; the endless conveyor havingconveyor elements spaced at intervals to receive the suspension elementsof sausage-shaped products one after the other; the conveyor elementsbeing movable from a position holding the sausage-shaped products bytheir suspension elements into a position depositing the suspensionelements onto the storage rod; at least one control element at spacedintervals along the storage rod producing the movement of the conveyorelements into their depositing position; and the conveyor elementshaving hooks that are pivotable around horizontal axes from theirposition holding the suspension elements into their position depositingthe suspension elements, and the at least one control element is amoving trigger element along the strand of the endless conveyor againstits forward direction, which triggers the movement of the hooks fromtheir holding into their depositing position.
 23. A production lineaccording to claim 22, where the hooks are each comprised of twoidentical partial hooks that, before reaching a takeover position fromthe feeding machine, in which the sausage-shaped products can be takenover by their suspension elements by the conveyor elements, arecongruent with one another and, after leaving the takeover position, arecapable of spreading crosswise to the span of the strand against aspring force into a position keeping the suspension elements open.
 24. Aproduction line according to claim 23, the feeding machine furthercomprising: an actuating body, arranged in the return direction of theendless conveyor before the takeover position for the suspensionelements, capable of moving the hooks, after the deposition of thesausage-shaped products on the storage rod, back into their positionholding the suspension elements.
 25. A production line according toclaim 22, where the endless conveyor is a chain running around a drivedisc and a turnaround disc, both discs being rotatable around horizontalaxes.
 26. A production line according to claim 22, the feeding machinefurther comprising: a supporting device which, after the partial feedingof a storage rod, can be pivoted in reverse on this device, between itsends, from a waiting position into a supporting position.
 27. Aproduction line according to claim 26, where the supporting device canbe moved into the supporting position by means of gravity and into thewaiting position by means of a motor drive.
 28. A production lineaccording to claim 27, where the movement of the supporting device intothe supporting position is supported by an elastic pre-tensioning force,which is reproducible by the motor drive.
 29. A feeding machineaccording to claim 27, where the supporting device is driven from adrive of the feeding machine.
 30. A production line according to claim26, where the movement of the supporting device from the waitingposition into the supporting position is triggered by the triggerelement.
 31. A production line according to claim 26, where thesupporting device includes a locking device that reversibly locks thesupporting device in the waiting position.
 32. A production lineaccording to claim 26, where the movement of the supporting device isguided along a continuous cam-track.
 33. A production line according toclaim 32, where the cam-track for the supporting device has at least twodiscontinuities defining the waiting position and the supportingposition.
 34. A production line according to claim 26, where the devicefor the end mounting of a storage rod is part of a turret device withfour clamping units, which can be rotated into a least in a mountingposition, a feeding position and a delivery position, and a testingposition provided between the mounting position and the feedingposition.
 35. A production line according to claim 34, where the turretdevice has a motor drive, moving the supporting device from thesupporting position into the waiting position.
 36. A production lineaccording to claim 34, the feeding machine further comprising: on theside of the feeding machine opposite the turret device a testing device,the testing device capable of detecting at least the presence of astorage rod.
 37. A production line according to claim 36, where thetesting device is capable of detecting the alignment of the storage rod.38. A production line according to claim 36, where the testing device iscapable of removing an incorrectly positioned storage rod and/or astorage rod having an incorrect alignment from the turret device.
 39. Aproduction line according to claim 36, where the testing device iscapable of controlling the feeding of the storage rods so that at leastone storage rod is always correctly positioned in the feeding position.40. A production line according to claim 36, where when in the testingposition, the storage rod in the clamping unit can be shifted axially byits free end into a test cup of the testing device, and, in case of animpediment in the shifting, can be discarded.
 41. A production lineaccording to claim 22, where the conveyor elements for the transfer ofthe sausage-shaped products onto the storage rod are guided in parallelpast the storage rods.
 42. A production line according claim 23, wherethe partial hooks of the conveyor elements are capable of being spreadimmediately before reaching the storage rod.
 43. A production lineaccording to claim 42, the feeding machine further comprising: atrapeze-shaped spreading bar capable of spreading the partial hooks. 44.A production line according to claim 42, where the spread partial hooksof the conveyor elements are capable of being compressed together againupon reaching the end of the storage rod.
 45. A production lineaccording to claim 44, where the compression of the spread partial hooksof the conveyor elements is carried out by means of a pre-tensionedspring.
 46. A production line according to claim 23, where the triggerelement is a release screw, upon the reaching the release screw aconveyor element releases the sausage-shaped product for deposition onthe storage rod by folding back the hooks.
 47. A production lineaccording to claim 46, where the release screw is guided on a spindle.48. A production line according to claim 46, where the release screw iscapable of being moved against the movement direction of the conveyorelements so that an even filling of the storage rods occurs.
 49. Aproduction line according to claim 46, where the release screw ispositioned to actuate a mechanism that causes the folding of the hooksof the conveyor elements.
 50. A production line according to claim 46,where the conveyor element includes a catch device securing the hooks ofthe conveyor element in the folded position as well as a catch devicesecuring the hooks of the conveyor elements in a set-up position asneeded.
 51. A production line according to claim 46, where the conveyorelement is positioned, right before reaching the takeover position, topass by a hook straightening element, which straightens the folded backhooks once again for the release of the sausage-shaped products.
 52. Aproduction line according to claim 51, where the conveyor elementincludes a catch device, securing the hooks of the conveyor element inthe straightened position.
 53. A production line according to claim 35,the feeding machine further comprising: a feeding device for the storagerods, capable of feeding the storage rods in coordination with the workcycle of the feeding machine.
 54. A production line according to claim53, where the feeding device is positioned to feed the storage rodsaxis-parallel to the clamping units of the turret device to the turretdevice and to insert the storage rods coaxially to one clamping unitinto the feeding machine.
 55. A production line according to claim 53,where the feeding device includes at least two fixed support elementsprovided with uniform divisions, on which a supply of storage rods isdeposited axis-parallel to the filling direction.
 56. A production lineaccording to claim 53, where the feeding device includes at least twoconveyor rods provided with uniform divisions, and capable oftransporting the storage rods into the feeding machine with anintermittent movement.
 57. A production line according to claim 56,where the feeding device includes at least one eccentric capable ofgenerating the intermittent movement.
 58. A production line according toclaim 57, where the at least one eccentric is capable of being driven bya belt drive.
 59. A production line according to claim 58, where thebelt drive is driven from the drive of the turret device.
 60. Aproduction line according to claim 23, the feeding machine furthercomprising: in the area of the takeover position, a weighing device forthe sausage-shaped products, the weighing device being capable ofmeasuring the weight of an individual sausage-shaped productselectively.
 61. A production line according to claim 60, where theweighing device has a weighing lever, pivotable into the movement pathof a conveyor element, to which a sausage-shaped product to be weighedcan be transferred by the conveyor element.